 | | Book | | Morozewicz Graham Schaller Sakurai and Hayashi Steiner Hurlbut KambandOke Walker Galli, Passaglia, Pongiluppi...volcanic ash and larger pyroclastic material on the land surface; in freshwater lakes; shallow marine seas;...different processes depending on whether it fell on the land surface, freshwater lake, or shallow sea; into a...a saline, alkaline lake; or into the ocean. LAND SURFACES Zeolites can form as the result of meteoric...ash or pyroclastic deposits that settled on the land surface, into freshwater lakes, or into a shallow | | | Book | | Morozewicz Graham Schaller Sakurai and Hayashi Steiner Hurlbut KambandOke Walker Galli, Passaglia, Pongiluppi...volcanic ash and larger pyroclastic material on the land surface; in freshwater lakes; shallow marine seas;...different processes depending on whether it fell on the land surface, freshwater lake, or shallow sea; into a...a saline, alkaline lake; or into the ocean. LAND SURFACES Zeolites can form as the result of meteoric...ash or pyroclastic deposits that settled on the land surface, into freshwater lakes, or into a shallow |  | | Journal (article/letter/editorial) | | Wairakite(Ca analcime, ranging first from some of Steiner tion AI2 was 600 the in this The zones ...discovered feet holes in Steiner active zone, zone, feldspar hydromica area Steiner found stable can...surface by altera‑ the following downward(Steiner, greywacke conditions is stable), Geysers ...of feet detail and further fregment 600 lower in (1958) in hydrothermal Manuscript detail...Wairakite depth ejected district, ｛ upper(ptilolite,mordenite are stable) lower(laumontite zeolitezone |  | | Journal (article/letter/editorial) | | stilbite, chabazite,and laumontite, and the minerals prehnite and datolite; together with these calcite, quartz...chalcopyrite,and native metal in stringers and seamswith prehnite, laumontite, thomsonire,and calcite;also native...(With opal, chalcedony, calcite, epidote, and prehnite.) 5Ells, R. W., "Copper in the Provincesof Nova...HgO is also consideredto belong to the zeolites. Prehnite, HgCa2A12SIaO•2,with 4-37 per cent. H20, and Datolite...substitutedin t'heir composition. F. W. Clarke and George Steiner, • for instance, obtainedan ammonium analciteby |  | | Journal (article/letter/editorial) | | are shown to be of regional extent. They include lower grade heul~n~~~alcim~qua~z amblages and higher grade...relative to (Ca,Na,)O.Al,O, tends to increase for lower temperrtturss of formation in accordance with theoretical...pressure, but the equilibrium temperature may be much lower. Preliminary solubility work indicates a reaction...analcime-wairakite series, Na-Ca mordenite series, epistilbite, prehnite and an unidentified phase 2. Phillipsite was synthesized...Cape Blomidon, Nova Scotia, and for prehnite from Prospect Quarry, New South Wales. 1. INTRODUCTION |  | | Journal (article/letter/editorial) | | the same author as greywacke-quartzite gneiss. Steiner (1986) treated them as a felsic mobilizate and...1960; Forster 1965; Forster and Kummer, 1974; Steiner, 1986). The origin of some more basic enclaves...clinozoisite-epidote s.s.s. (Table 1a). Sphene and prehnite are less widespread and wollastonite has been...campaigns (Table 3). In the Bohemian Massif of Austria, a W mineralization bound to calcsilicate rocks...scheelite mineralization in lithotype 2. In the quarry “Oberbaumühle” near Windischeschenbach, macroscopic | | | Journal (article/letter/editorial) | | clay minerals occur associated with zeolites, prehnite, pumpellyite and epidote in the low-grade metamorphosed...central part The diorite R. of by this It district Hayato it thick along R. Hayato OF About...the one amount eastern a monoclinal ness lower group the Mountains NNW-SSE an to Tanzawa...reported the stratigraphical suc cession of this district as follows (Fig. 1): in the eastern along R...R . Metamorphosed rocks in this district can be divided into the following seven zones, on the basis | | | Journal (article/letter/editorial) | | formation, 3: Lower and middle formation, 4: Fault, 5: Drill holes, 6: Hot springs Wairakei (Steiner, 1970)...breccia and tuff breccia over lies the formation of lower part in 0-1(T). In 0-1(R) and 0-6(T), however, only...an alteration product in the geothermal system. Prehnite occurs in only two samples at 480 and 834 meters...Pyrite, Laum: Laumontite, Wai: Wairakite, Preh: Prehnite, Epi: Epidote V mark . Mineral forming vein W1...than as thin minerals, and is accompanied with prehnite at 834 meters in depth. In drill cores of 0-1(T) |  | | Journal (issue) | | learned that Marriot and Son had bought the Oneco quarry and were working it (the one which we had first...had been abandoned. Here is an example of how a quarry might receive a wrong name by a careless collector...Another source of confusion arises when a mine or quarry is situated near a county or state line and its...adjacent county or state. Or worse still, the mine or quarry could be right on the line. These are but a few...Mineralogy-Petrology Burgring 7, A-1014 Vienna, Austria ustria has many small occurrences which are mineralogically |  | | Journal (article/letter/editorial) | | Compositional controls on coexisting prehnite-actinolite and prehnite-pumpellyite facies assemblages in...metamorphism resulted in the development of (metastable) prehnite-pumpellyite+pidote assemblages in two sub-zones...characterized by high Fe203. Elsewhere the assemblage prehnite-actinoliteepidote developed except in the contact...marginal zones where activity of C02 suppressed both prehnite and pumpellyite. Both assemblages contain excess...equilibrium assemblages indicative of prehnite-pumpellyite and prehnite-actinolite facies conditions. A metamorphic | | | Journal (article/letter/editorial) | | pressure for high wairakite these pressures Prehnite wairakite tions (Coombs to are as pressure...low-grade 1959) the shift to Figures equilibrium lower 7 and 8). frequently and transformation of...associated laumontite metamorphosed (Seki, rocks. prehnite P-T temperature Chemical to wairakite with...2CaA12Si4O12.2H2O_??_Ca2Al2Si3O10(OH)2+ wairakite prehnite A12Si2O5(OH)4+ kaolinite 3SiO2+H2O•E•E•E•E•...CaAl2Si4O12•E4H2O_??_Ca2Al2Si3O10(OH)2+ laumontite prehnite Al2Si2O5(OH)4+ kaolinite 3SiO2+5H20•E•E•E•E |  | | Journal (article/letter/editorial) | | stability range of wairakite is about 100~ wide. At lower temperatures wairakite reacts with HeO to form laumontite...drill holes in t h e W M r a k e i District, N e w Z e a l a n d (Steiner, 1955). Since t h e n n u m e r...a m o r p h i c rocks h a v e been recognized (Steiner, 1958; Wise, 1959; Coombs et al., 1959; Donnelly...value of 2.26 measured for natural wairakite (Steiner, 1955). Disordered Wairakite. I n contrast to wairakite...575 and n8 = 1.582 ~- 0.002, wieh are slightly lower than n~ -~ 1.585 and ns-~ 1.590 of the megacrystals |  | | Book | | MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning...beginning of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...1991). Simdeled, Aust-Agder. Early in 1999, in a quarry near S~ndeled, collectors opened a pocket containing...PORTUGAL Montijos quarry, Monte Redondo, Leiria Estremadura. The Montijos gabbro quarry at Monte Redondo |  | | Journal (article/letter/editorial) | | hydrothermally altered rocks at Wairakei, New Zealand (Steiner, 1955; Coombs, 1955) has since been discovered...(s07d, clinozoisite (possibly zoisite) (10%) and prehnite (37;. fn addition, chlorite, qtartz and ?opal...size is between 10-60 p for all minerals except prehnite, which occursin spongy crystals up to 0.2 mm long...Textural relations suggest that wairakite and prehnite have partially replaced calcite. Clinozoisite.... 1 6 0.17 16.01 0.96 New Zealand (data from Steiner, 1955) l.O6wt. /6 0 .1 6 tt.7 751 MINERAL)GICAL |  | | Journal (article/letter/editorial) | | base of the brecciated phtonic sequence and vein prehnite+laumontite in the upper part suggests that the...dredged from ocean floors and ridges and for on-land ophiolites (e.g., Bezzi and Piccardo, la71; Miyashiro...individual large slabs exposed in the Kuanshan district. Field investigations (Liou et al., 1977) have...conditions as shown by the development of late veins of prehnite (+laumontite) and actinolite (+albite) respectively...described in detail by Kuniyoshi and Lion (i976a) for prehnite-pumpellyite facies metabasaltic rocks 338 Phase | | SEKI, YOTARO, TAKAYASU, TADAMITSU, NAKAJIMA, MIHARU, ONUKI, HITOSHI (1968) WAIRAKITE FROM HANAWA MINING DISTRICT, NORTHERN JAPAN. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 59 (6) 236-246 doi:10.2465/ganko1941.59.236 | Journal (article/letter/editorial) | | MINING NORTHERN YOTARO JAPAN SEKI*, MIHARU DISTRICT, TADAMTSU TAKAYASU** and HITosHI ONUKI***...Geological map porphyry of the Hanawa mining district . sincerethanks to Messrs.T. Kasaya , K. Suda...#329 respectively. Wairakite from Hanawa mining district , northern Japan 239 diameter. Chlorite and...the of Fig. Hanawa mining ● avm wairekita district. 1. Fig. 3. Zeo1itedistribution in the Hanawa...mineral pat were Wairakitefrom Hanawa mining district , northernJapan 243 Type It has of polymorphs |  | | Journal (article/letter/editorial) | | Celodonite Smectite Chlorite Prehnite Pumpellyite Albite Quartz Prehnite- Laumontite pumpellyite stage...layer rain, Chlorite Celadonite Muscovite Biotite Prehnite Pumpellyite Epidote Actinolite Hornblende Plagioclase...decide which of two dehydration reactions occur at a lower temperature. In such cases, the order to be given...from the active geothermal fields of Wairakei (Steiner 1955, Coombs et al. 1959) and Onikobe (Seki 1966...gradients, step (c) would grade directly into the prehnite-pumpellyite facies. Yugawaralite may form in a |  | | Book | | Monte- Catini Vesuvius, Clyclopean Isles, Sicily AUSTRIA Fassatal, CZECHOSLOVAKIA Assig, GERMANY Causeway...ASSOCIATED MINERALS: With other zeolites·, ' I I I Prehnite, REFERENCES: 1) Pg. 4 2) Pg. 21 3) Pg. 652... HUNGARY Bogdany, Visegrad BOHEMIA Assig AUSTRIA Obersulzbachtal & Habachtal, Seekar Gap. Styria...Montclair, West Paterson, (Paterson: Rt 80, Upper & Lower New Street) Prospect Park, These are a few of the...laumontite, and shists. gemelinite, thomsonite, prehnite, datalite, auartz, In the basalts, natrolite |  | | Journal (article/letter/editorial) | | later CO2-poor fluids precipitated Ca-zeolites, prehnite and pumpellyite. Vesicular parts of flows typically...Ca-zeolites, prehnite, pumpellyite and rare epidote suggests uppermost zeolite facies to lowermost prehnite–pumpellyite...consists of two flows (lower and upper) separated by volcanic breccia. The lower flow, which is relatively...restricted in extent and up to 30 m thick, contains lower and upper amygdaloidal zones separated by dense...flows separated by breccia (Carr 1984), but the lower flow is restricted to the subsurface and the only |  | | Journal (article/letter/editorial) | | reduced about 100 °C at 5kb Pfluja. At slightly lower /o, than defined by the QFM buffer, epidote is not...Combined with previously determined equilibria for prehnite, andradite, and hedenbergite, isobaric fo,-T relations...chemographic analysis interrelating the phases prehnite, epidote, grandite, hedenbergite, wollastonite...at University of Guelph on September 28, 2014 prehnite-pumpellyite facies, greenschist facies and epidote...Epidote, CaiAlt_HCFe1_ISi1Olt(OH) where x < 0-2 Pr = Prehnite, Ca.Al.Si.O^OH), Ad •= Andradite, CaaFejSijOu | | | Journal (article/letter/editorial) | | るzoneがheulandite Zealand地 sequenceと称 論 文 に よ る と,Zeolite りPrehnite‑pumpellyite fades fadesを 向 斜 で の 変 成 の 相 系...丹沢 山地 時 彦,奥 で 特 徴 づ けら clinoptiloliteのzoneに Prehnite‑pumpellyiteのzoneに 移 化 す る。 これ はNew *最近 の中島 ...所 で 晶 出 し て い る こ と は 注目 に 値 す る 。 熱地 帯 の 研 究(Steiner,1953,1955;Coombsetal., よ る と そ こ で は 浅 所 よ り深...こ な わ れ た 。 お そ ら く,新 。(1)New ‑PumPellyi 更 にPrehnite 変 成 度の 部分 か ら 較 的 低 い 地 温 勾 配(1 ,1967).(3)の...Hay, grade Norden, comments Geoch. Ellis, Lower Congr., zeolitic Amer., No. (1959), sedimentary |  | | Journal (article/letter/editorial) | | pressure within the thermal system is therefore lower than outside. A pressure difference of l0 atmospheres...<_x~ ~x ~ /x I x Quartz, + zeolites Epidote Prehnite Anh~drite % % % Yo I0 20 50 40 5 0 0 I0 2 0 0...distribution of anhydrite, quartz, zeolites, epidote, prehnite and the clay minerals is shown in the figure,...to greatest depth in the hottest holes. Prehnite Prehnite occurs first in the zone between the zeolite...pleochroic. The thermally instable chlorites have lower refractive indices and higher birefringence than |  | | Journal (article/letter/editorial) | | ALTERATIONS IN THE SEIGOSHI GOLD SILVER MINING DISTRICT, WESTERN PART OF THE IZU PENINSULA, JAPAN NAOTATSU...alterations in the Seigoshi gold-silver mining district, western part of the Izu Peninsula, Japan. In:...alterations occur in the Seigoshi gold--silver mining district, in the western part of the Izu Peninsula, Japan...portion to the shallower portion: an epidote--prehnite--K-feldspar--chlorite zone; a wairakite--laumontite...clay-rich zones. Fluid inclusions from the epidote--prehnite--K-feldspar-chlorite zone are liquid-dominated |  | | Journal (issue) | | orthoclase & chlosite. Mag. = x 8.5. Reilly quarry, Renfrewshire. 1998 Kemp Meikle. Journal of the... 100 G~ t---I Kilometers • General Location Map Land • o Figure 1. LOCATION AND GEOLOGY Burdell Gill...northern most group of hills in the English Lake District (Fig. 1). It is a small tributary of the River...wolframite was found in an E-W quartz- tourmaline vein lower down the gill but there is little associated manganese...the wolframite-bearing quartz vein material from lower down Burdell Gill. Journal of the Russell Society |  | | Report (issue) | | and W. A. Watters DSIR Geology and Geophysics, Lower Hutt Regretfully, an incorrect initial for Mr Railton...title page. His initials should be G.T., not G.L. Lower Hutt, New Zealand 1990 I I Beach sand, alluvium...may be unfamiliar with chemistry, an Survey) in Lower Hutt. They may also be consulted explanation of...various stages of the draft, and PO Box 30-368, Lower Hutt. J.G. Gregory for his advice and encouragement...Crystals in quartz vein cutting gneiss (visible on lower edge of specimen), Gertrude Saddle, Fiordland. (20 |
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Steiner quarry, Spitz, Krems-Land District, Lower Austria, Austria